Weather Records on 27 September 2015

664 weather records were set or tied worldwide on 27 September 2015. Highest significance: Kolguev Severnyi, RU.

Key Facts for 27 September 2015

On 27 September 2015, 664 weather records were set or tied at long-record stations worldwide.
548 were record highs and 47 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 5 monthly and 659 daily.
Kolguev Severnyi set a daily record precipitation of 27.5 mm (1.1 in) on 27 September 2015.
Across 154 earlier years (1799 to 2026) the same calendar date averaged 449 records.

Record Map

664 stations

664 station records on 27 September 2015 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 September 2015: highest significance records shown on the map
Station	Country	Type	Value	Significance
Kolguev Severnyi	Russia	Record daily precipitation	27.5 mm (1.1 in)	69 of 100 (Major)
Bethel AP	United States	Record daily precipitation	41.4 mm (1.6 in)	60 of 100 (Major)
Paauilo 221	United States	Record daily precipitation	109.2 mm (4.3 in)	57 of 100 (Notable)
Ajo	United States	Record low minimum temperature	7.8 C (46.0 F)	56 of 100 (Notable)
Nuuanu Rsch 5 775	United States	Record daily precipitation	38.1 mm (1.5 in)	54 of 100 (Notable)
Tegucigalpa	Honduras	Record daily precipitation	61.7 mm (2.4 in)	52 of 100 (Notable)
Wallangarra Post Office	Australia	Record daily precipitation	38.0 mm (1.5 in)	46 of 100 (Notable)
Poretskoye	Russia	Record high maximum temperature	29.2 C (84.6 F)	45 of 100 (Notable)
Kazan	Russia	Record high maximum temperature	28.2 C (82.8 F)	43 of 100 (Notable)
Mobile	United States	Record daily precipitation	190.5 mm (7.5 in)	43 of 100 (Notable)
Niznij Novgorod	Russia	Record high maximum temperature	27.0 C (80.6 F)	42 of 100 (Notable)
Gettysburg	United States	Record high minimum temperature	15.6 C (60.1 F)	42 of 100 (Notable)
Wheatland 4N	United States	Record high minimum temperature	15.6 C (60.1 F)	41 of 100 (Notable)
Buzau	Romania	Record high minimum temperature	17.6 C (63.7 F)	40 of 100 (Notable)
Kazan	Russia	Record high minimum temperature	15.2 C (59.4 F)	40 of 100 (Notable)
Watford City	United States	Record high maximum temperature	34.4 C (93.9 F)	40 of 100 (Notable)
Del Norte 3ENE	United States	Record high maximum temperature	26.7 C (80.1 F)	39 of 100 (Notable)
Whitefish Pt	United States	Record high minimum temperature	15.0 C (59.0 F)	39 of 100 (Notable)
Duchesne	United States	Record high maximum temperature	28.9 C (84.0 F)	39 of 100 (Notable)
Borisov	Belarus	Record daily precipitation	25.9 mm (1.0 in)	38 of 100 (Notable)
Ogallala	United States	Record high minimum temperature	12.8 C (55.0 F)	38 of 100 (Notable)
Tooele	United States	Record high minimum temperature	20.0 C (68.0 F)	38 of 100 (Notable)
Dutch Harbor	United States	Record high maximum temperature	23.3 C (73.9 F)	38 of 100 (Notable)
Indian Pass	United States	Record daily precipitation	61.0 mm (2.4 in)	38 of 100 (Notable)
Iliamna AP	United States	Record daily precipitation	75.2 mm (3.0 in)	38 of 100 (Notable)
Talkeetna AP	United States	Record daily precipitation	35.6 mm (1.4 in)	38 of 100 (Notable)
Kamennaja-Step	Russia	Record high maximum temperature	28.6 C (83.5 F)	37 of 100 (Notable)
Broadus	United States	Record high maximum temperature	34.4 C (93.9 F)	37 of 100 (Notable)
Ely AP	United States	Record high minimum temperature	12.8 C (55.0 F)	37 of 100 (Notable)
Inza	Russia	Record high maximum temperature	29.1 C (84.4 F)	36 of 100 (Notable)
Ufa	Russia	Record high maximum temperature	25.7 C (78.3 F)	36 of 100 (Notable)
Kursk	Russia	Record high maximum temperature	26.5 C (79.7 F)	36 of 100 (Notable)
Urjupinsk	Russia	Record high maximum temperature	30.5 C (86.9 F)	36 of 100 (Notable)
Grand Isle	United States	Record daily precipitation	89.2 mm (3.5 in)	36 of 100 (Notable)
Penza	Russia	Record high maximum temperature	28.7 C (83.7 F)	35 of 100 (Notable)
Samara	Russia	Record high maximum temperature	30.2 C (86.4 F)	35 of 100 (Notable)
Watford City	United States	Record high minimum temperature	13.3 C (55.9 F)	35 of 100 (Notable)
Qumarleb	China	Record high maximum temperature	19.8 C (67.6 F)	34 of 100 (Routine)
Tambov	Russia	Record high maximum temperature	29.2 C (84.6 F)	34 of 100 (Routine)
Roi Et	Thailand	Record high minimum temperature	26.9 C (80.4 F)	34 of 100 (Routine)
Rize	Turkey	Record high minimum temperature	20.0 C (68.0 F)	34 of 100 (Routine)
Tonopah	United States	Record high minimum temperature	16.1 C (61.0 F)	34 of 100 (Routine)
Roanoke-Blacksburg Rgnl AP	United States	Record daily precipitation	55.6 mm (2.2 in)	34 of 100 (Routine)
Daly Waters AWS	Australia	Record low minimum temperature	7.0 C (44.6 F)	33 of 100 (Routine)
Bouake	Cote D'Ivoire	Record high minimum temperature	22.5 C (72.5 F)	33 of 100 (Routine)
Paveletz	Russia	Record high maximum temperature	28.1 C (82.6 F)	33 of 100 (Routine)
Aksakovo	Russia	Record high maximum temperature	25.6 C (78.1 F)	33 of 100 (Routine)
Sernovodsk	Russia	Record high maximum temperature	29.0 C (84.2 F)	33 of 100 (Routine)
Kharkiv	Ukraine	Record high maximum temperature	28.0 C (82.4 F)	33 of 100 (Routine)
Wendover AP AWOS	United States	Record high minimum temperature	17.2 C (63.0 F)	33 of 100 (Routine)
Tabou	Cote D'Ivoire	Record high minimum temperature	25.0 C (77.0 F)	32 of 100 (Routine)
Ust-Kulom	Russia	Record high maximum temperature	23.5 C (74.3 F)	32 of 100 (Routine)
Rjazan	Russia	Record high maximum temperature	27.7 C (81.9 F)	32 of 100 (Routine)
Surat Thani	Thailand	Record daily precipitation	54.1 mm (2.1 in)	32 of 100 (Routine)
Hermit 8 SE	United States	Record high maximum temperature	25.6 C (78.1 F)	32 of 100 (Routine)
Glenbrook	United States	Record high minimum temperature	13.9 C (57.0 F)	32 of 100 (Routine)
Richardton Abbey	United States	Record high minimum temperature	15.6 C (60.1 F)	32 of 100 (Routine)
Kokshetay	Kazakhstan	Record low minimum temperature	-7.9 C (17.8 F)	31 of 100 (Routine)
Kautokeino	Norway	Record high minimum temperature	7.5 C (45.5 F)	31 of 100 (Routine)
Imperial	United States	Record high minimum temperature	25.6 C (78.1 F)	31 of 100 (Routine)

Counts by Type and Timescale

664 records

Records set or tied on 27 September 2015 by type: Highest daily maximum 265, Lowest daily maximum 14, Highest daily minimum 283, Lowest daily minimum 33, Heaviest daily rainfall 68, Deepest snow cover 1.

Records on 27 September 2015 by type
Record type	Records
Highest daily maximum	265
Lowest daily maximum	14
Highest daily minimum	283
Lowest daily minimum	33
Heaviest daily rainfall	68
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 27 September 2015 by timescale: all-time 0, monthly 5, daily 659.

How Much Records Were Beaten By

496 broken records

Margins by which the 496 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 82.5. Ties are not counted.

Top 20 by Significance

27 September 2015

Top 20 records on 27 September 2015 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 September 2015	Kolguev Severnyi, RU	daily rain	27.5 mm (1.1 in)	20.5 mm (0.8 in)	72 years	69 of 100 (Major)
27 September 2015	Bethel AP, US	daily rain	41.4 mm (1.6 in)	17.8 mm (0.7 in)	54 years	60 of 100 (Major)
27 September 2015	Paauilo 221, US	daily rain	109.2 mm (4.3 in)	53.3 mm (2.1 in)	33 years	57 of 100 (Notable)
27 September 2015	Ajo, US	daily low min	7.8 C (46.0 F)	6.1 C (11.0 F)	92 years	56 of 100 (Notable)
27 September 2015	Nuuanu Rsch 5 775, US	daily rain	38.1 mm (1.5 in)	24.9 mm (1.0 in)	46 years	54 of 100 (Notable)
27 September 2015	Tegucigalpa, HN	daily rain	61.7 mm (2.4 in)	41.8 mm (1.6 in)	32 years	52 of 100 (Notable)
27 September 2015	Wallangarra Post Office, AU	daily rain	38.0 mm (1.5 in)	12.6 mm (0.5 in)	80 years	46 of 100 (Notable)
27 September 2015	Poretskoye, RU	daily high max	29.2 C (84.6 F)	4.7 C (8.5 F)	90 years	45 of 100 (Notable)
27 September 2015	Kazan, RU	daily high max	28.2 C (82.8 F)	3.5 C (6.3 F)	90 years	43 of 100 (Notable)
27 September 2015	Mobile, US	daily rain	190.5 mm (7.5 in)	82.5 mm (3.2 in)	16 years	43 of 100 (Notable)
27 September 2015	Niznij Novgorod, RU	daily high max	27.0 C (80.6 F)	3.0 C (5.4 F)	90 years	42 of 100 (Notable)
27 September 2015	Gettysburg, US	daily high min	15.6 C (60.1 F)	1.2 C (2.2 F)	112 years	42 of 100 (Notable)
27 September 2015	Wheatland 4N, US	daily high min	15.6 C (60.1 F)	0.6 C (1.1 F)	117 years	41 of 100 (Notable)
27 September 2015	Buzau, RO	daily high min	17.6 C (63.7 F)	0.1 C (0.2 F)	118 years	40 of 100 (Notable)
27 September 2015	Kazan, RU	daily high min	15.2 C (59.4 F)	1.6 C (2.9 F)	90 years	40 of 100 (Notable)
27 September 2015	Watford City, US	daily high max	34.4 C (93.9 F)	2.2 C (4.0 F)	92 years	40 of 100 (Notable)
27 September 2015	Del Norte 3ENE, US	daily high max	26.7 C (80.1 F)	0.6 C (1.1 F)	93 years	39 of 100 (Notable)
27 September 2015	Whitefish Pt, US	daily high min	15.0 C (59.0 F)	0.6 C (1.1 F)	93 years	39 of 100 (Notable)
27 September 2015	Duchesne, US	daily high max	28.9 C (84.0 F)	0.6 C (1.1 F)	93 years	39 of 100 (Notable)
27 September 2015	Borisov, BY	daily rain	25.9 mm (1.0 in)	17.0 mm (0.7 in)	17 years	38 of 100 (Notable)

Significance is a score from 0 to 100 combining margin, the age of the old record and the length of the station's record. How it is computed.

The Same Date in Other Years

1799 to 2015

Records set or tied on this calendar date in each year from 1799 to 2015. 2015 had 664 records.

Counts for years before the ledger starts come from the same station rules.

Records on 09-27 in each year
Year	Records
1799	1
1828	1
1836	2
1847	1
1851	1
1854	2
1855	2
1859	2
1866	2
1867	3
1874	1
1875	1
1877	2
1880	1
1881	4
1882	1
1885	5
1887	1
1890	3
1891	1
1892	1
1893	1
1894	5
1895	6
1896	1
1897	2
1898	4
1899	1
1900	5
1901	3
1902	12
1903	7
1904	12
1905	21
1906	21
1907	9
1908	36
1909	17
1910	20
1911	31
1912	25
1913	27
1914	24
1915	80
1916	57
1917	41
1918	58
1919	45
1920	54
1921	26
1922	111
1923	125
1924	115
1925	129
1926	581
1927	244
1928	288
1929	225
1930	178
1931	222
1932	194
1933	559
1934	298
1935	319
1936	435
1937	309
1938	366
1939	572
1940	706
1941	257
1942	1,353
1943	503
1944	323
1945	475
1946	387
1947	813
1948	405
1949	407
1950	223
1951	480
1952	539
1953	567
1954	507
1955	386
1956	825
1957	644
1958	585
1959	582
1960	337
1961	376
1962	352
1963	849
1964	724
1965	688
1966	426
1967	502
1968	286
1969	233
1970	773
1971	762
1972	989
1973	1,031
1974	408
1975	790
1976	905
1977	852
1978	773
1979	741
1980	559
1981	680
1982	1,076
1983	791
1984	1,297
1985	661
1986	1,772
1987	1,013
1988	494
1989	852
1990	379
1991	894
1992	659
1993	727
1994	764
1995	698
1996	1,468
1997	730
1998	1,774
1999	1,059
2000	1,031
2001	980
2002	992
2003	830
2004	665
2005	1,061
2006	596
2007	1,091
2008	659
2009	987
2010	1,153
2011	965
2012	624
2013	823
2014	813
2015	664
2016	600
2017	891
2018	600
2019	755
2020	659
2021	893
2022	642
2023	747
2024	1,449
2025	272
2026	358

Download the Data

Data for records on 2015-09-27: CSV or JSON. Field meanings are on the data page.

Sources: Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 20	484
20 to 40	6
40 to 60	5
60 to 80	0
80 to 100	1